NEW
Font size
S
M
L
XL
WorksheetsEnergy Pt 2 (10.3 & 10.4)
Total questions: 34
Worksheet time: 1hrs 10mins
Name
Class
Date
1.
Name the Energy conversion from the Sun to a growing apple tree.
a)
Nuclear → Electrical
b)
Gravitational → Thermal
c)
Chemical → Motion
d)
Radiant (Light) → Chemical
2.
Name the Energy Conversion of a cracked Glow Stick.
a)
Radiant (Light) → Elastic Potential
b)
Chemical → Radiant (Light)
c)
Nuclear → Kinetic
d)
Radiant (Light) → Thermal
3.
Name the Energy Conversion of an unplugged Chromebook playing a video?
a)
Chemical→ Electrical → Thermal, Sound and Radiant (Light)
b)
Electrical → Thermal, Sound and Radiant (Light)
c)
Nuclear→ Electrical → Thermal, Sound and Kinetic
d)
Thermal → Electrical → Chemical, Sound and Radiant (Light)
4.
Name the Energy Conversion of a Clothes Dryer.
a)
Chemical→ Thermal and Radiant (Light)
b)
Electrical → Elastic Potential, Thermal and Sound
c)
Gravitational Potential→ Nuclear, Sound and Thermal
d)
Electrical → Thermal, Mechanical and Sound
5.
a)
A flashlight is on
b)
Gasoline burns to power a car
c)
A candle burns
d)
Electric current runs a refrigerator
6.
Your sister turns on her hair dryer. What kind of energy is the electrical energy being transferred into?
a)
heat and sound
b)
light and heat
c)
sound and light
d)
chemical and heat
7.
When a ball rolls across a gym floor it will slow down and eventually stop. What happens to the total amount of energy in the system?
a)
total amount of energy increases
b)
total amount of energy decreases
c)
total amount of energy stays the same
d)
total amount of energy constantly changes
8.
a)
chemical energy → mechanical energy → electrical energy
b)
mechanical energy → chemical energy → electrical energy
c)
electrical energy → chemical energy → mechanical energy
d)
chemical energy → electrical energy → mechanical energy
9.
a)
Elastic Potential energy to mechanical energy, sound energy and thermal energy
b)
Mechanical energy to chemical energy
c)
Chemical energy to sound energy, kinetic energy and heat energy
d)
Electrical energy to elastic potential energy
10.
a)
Chemical energy into mechanical energy
b)
Electrical energy into chemical energy
c)
Heat energy into chemical energy
d)
Mechanical energy into nuclear energy
11.
What do we call a change from one form of energy to another?
a)
Energy formation
b)
Friction
c)
Law of Conservation of Energy
d)
Energy transformation
12.
The purpose of the panels is to change Light energy into ____________.
a)
Thermal energy
b)
electrical energy
c)
chemical energy
d)
mechanical energy
13.
In the diagram, a wind turbine is transforming energy from the wind. Between which two steps in the diagram is mechanical energy being converted into electrical energy?
a)
1 and 2
b)
2 and 3
c)
3 and 4
d)
4 and 5
14.
The picture shows a light bulb attached to a hand generator flashlight. What energy transformation occurs as the handle of the generator is turned?
a)
thermal to solar to light
b)
solar to light to electrical
c)
mechanical to electrical to light
d)
electrical to mechanical to light
15.
Which of the pictures involves kinetic mechanical energy that is converted into electrical energy?
a)
A
b)
B
c)
C
d)
D
16.
Which of the pictures converts solar energy into electrical energy?
a)
A
b)
B
c)
C
d)
D
17.
The diagram below shows a hot air balloon rising. Propane gas tanks are seen at the bottom of the balloon. What energy transformations occur when propane gas is used to lift the balloon?
a)
Mechanical to light to chemical
b)
Chemical to mechanical to thermal
c)
Thermal to chemical to light
d)
Chemical to thermal to mechanical
18.
The ___________ in sugars and starches of food fuels all your body functions and movements, and provides the thermal energy that keeps your body temperature constant.
a)
nuclear energy
b)
chemical energy
c)
electrical energy
d)
light energy
19.
What energy transfer takes place when you rub your hands together?
a)
chemical energy to light energy
b)
thermal energy to electrical energy
c)
mechanical energy to thermal energy
d)
sound energy to potential energy
20.
Mechanical energy that is in motion can also be called
a)
solar
b)
kinetic
c)
potential
d)
electrical
21.
What energy transfer takes place in a coal burning power plant?
a)
chemical to heat to electrical
b)
sound to heat to electrical
c)
heat to chemical to electrical
d)
solar to heat to mechanical
22.
What is the energy transfer?
a)
Chemical Energy into Kinetic Energy
b)
Electrical Energy into Light and Sound Energy
c)
Chemical Energy into Kinetic, Sound, Light and Thermal Energy.
d)
Light Energy into Electrical Energy.
23.
What is the sequence of the energy transformations represented in this diagram of a moving car?
a)
mechanical to chemical to radiant (light)
b)
radiant (light) to chemical to electrical
c)
mechanical to electrical to radiant (light)
d)
radiant (light) to electrical to mechanical
24.
According to the Law of Conservation of Energy, energy cannot be _________ or ____________.
a)
changed, destroyed
b)
created, saved
c)
created, destroyed
d)
lost, found
25.
At point C, the Total Mechanical Energy = 500 J, and its Potential Energy= 100 J, what is its Kinetic Energy?
a)
600 J
b)
400 J
c)
200 J
d)
100 J
26.
If this device were a light bulb, what is the useful energy?
a)
The Light energy
b)
The Heat energy
c)
Both the Light and Heat Energy
27.
If this device were a light bulb, is this very energy efficient?
a)
Yes, it is 10% efficient.
b)
No, it is only 10% efficient.
c)
Yes, it is 90% efficient.
d)
No, it is 90% efficient.
28.
If the Total Mechanical Energy is 50J, Potential Energy is 40 J, what is the Kinetic Energy?
a)
1 J
b)
10 J
c)
90 J
29.
What is efficiency?
a)
The total amount of energy lost
b)
The % of energy lost as heat
c)
The useful energy doing work to make it easier.
d)
how long it takes for energy to be conserved
30.
Heat energy caused by friction
a)
chemical
b)
electrical
c)
mechanical
d)
thermal
31.
What is the efficiency of a machine when the input is 263 J and the useful output is 142 J?
a)
1.85 %
b)
121 %
c)
5.39 %
d)
53.9 %
32.
What is the useful energy?
a)
Sound
b)
Thermal
c)
Kinetic
d)
Chemical
33.
How much kinetic energy would there be?
a)
200J
b)
175 J
c)
250J
d)
75 J
34.
What is the efficiency of the car?
a)
55%
b)
35%
c)
65%
d)
30%
Reset
